1814802143656 has 32 divisors (see below), whose sum is σ = 3554942790600. Its totient is φ = 867436998400.

The previous prime is 1814802143647. The next prime is 1814802143663. The reversal of 1814802143656 is 6563412084181.

It can be written as a sum of positive squares in 4 ways, for example, as 1790859532900 + 23942610756 = 1338230^2 + 154734^2 .

It is a super-3 number, since 3×1814802143656³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38701435 + ... + 38748298.

Almost surely, 2^{1814802143656} is an apocalyptic number.

It is an amenable number.

1814802143656 is a deficient number, since it is larger than the sum of its proper divisors (1740140646944).

1814802143656 is a wasteful number, since it uses less digits than its factorization.

1814802143656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77449869 (or 77449865 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 1814802143656 in words is "one trillion, eight hundred fourteen billion, eight hundred two million, one hundred forty-three thousand, six hundred fifty-six".